//
//  Person.h
//  OC_Underlying_KVO
//
//  Created by jianbo.pei on 2024/1/24.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface Person : NSObject

@property (nonatomic, copy) NSString *nickName;

@end

NS_ASSUME_NONNULL_END
